Identical twin brothers Amiri and Rahiem Taylor, from Bedford-Stuyvesant, say on their website that while they grew up surrounded by hip-hop, they had more exposure to pop, funk and soul from the '60s through the '80s. They taught themselves to play guitar and write songs based on the Beatles, learning from "arguably the greatest songwriting duo of all time," and the Taylor brothers now create what they call their own "psychedelic rock tunes."

They began busking to make some pocket money, and found a receptive audience on the subway with their Beatles covers. The brothers say they're continuing to perform on the subway while performing original music at venues across the city.

Stephen King and Russell Crowe are among the celebrities who have retweeted Whitlock's video of Blac Rabbit.